Cover body air tightness detection mechanism

Abstract

The utility model relates to a cover body air tightness detection mechanism. The technical problem that an existing cover body airtightness detection mechanism is unreasonable in design is solved. The cover body air tightness detection mechanism comprises a positioning seat, the middle part of which is provided with a mounting hole; the positioning platform is arranged at the upper end of the positioning seat; the lifting platform is vertically arranged in the middle of the positioning platform in a penetrating mode, a lifting driver connected with the lifting platform is arranged on the positioning seat, the outer diameter of the lifting platform is larger than the inner diameter of the mounting hole, the lifting platform can seal the mounting hole, an air inlet is formed in the middle of the lifting platform, and the air inlet is connected with an air tightness detector; and the downward pressing device comprises a downward pressing seat located above the positioning platform, and a positioning plug is arranged at the bottom of the downward pressing seat. The cover body air tightness detection mechanism respectively aims at the circumferential edge of the end part of the end cover and the step surface in the end cover, two-section type air tightness detection of the end cover is formed, and the universality can be improved through disassembly and replacement of the widened plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to airtightness detection equipment field relates to a cover body airtightness detection mechanism. BACKGROUND

[0002] For example, Chinese patent document discloses a kind of gearbox cover airtightness detection mechanism [202320948075.7], the gearbox cover airtightness detection mechanism described in the present application includes: positioning platform, embedding with the sealing ring projecting on the upper end surface of positioning platform;Positioning structure, including the installation ring being located in the sealing ring inside and being arranged on the positioning platform, at least three springs being arranged on the outer wall of the installation ring and projecting radially, and outer support block being connected at the end of the spring away from installation ring;Lowering device, including the lifting plate being located above the positioning platform, the drive cylinder driving the lifting plate, and the positioning plug being arranged at the bottom of lifting plate.

[0003] The defect of the above technical solution is that only the airtightness of the end cover as a whole can be tested, and the airtightness of the internal step surface of the end cover is not detected. UTILITY MODEL CONTENT

[0004] The utility model aims at the above problems existing in prior art, provide a kind of cover body airtightness detection mechanism.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] The cover body airtightness detection mechanism includes:

[0007] Positioning seat, installation hole is arranged in the middle part;

[0008] Positioning platform, is arranged on the upper end of the positioning seat;

[0009] Lifting platform, vertically passes through and is arranged in the middle part of the positioning platform, lifting drive is arranged on the positioning seat and connected with the lifting platform, the outer diameter of the lifting platform is greater than the inner diameter of the installation hole, and the lifting platform can close the installation hole, air inlet is arranged in the middle part of the lifting platform, and airtightness detector is connected with the air inlet;

[0010] Lowering device, including the lower pressing seat being located above the positioning platform, the bottom of the lower pressing seat is provided with positioning plug, and the lower pressing drive for driving the lower pressing seat vertically lifting.

[0011] Further, the outer ring sealing ring is arranged on the positioning platform and projects from the positioning platform.

[0012] Further, the inner ring sealing ring is arranged on the lifting platform and projects from the lifting platform.

[0013] Further, the lifting platform protrudes from the positioning platform, and the circumferential edge of the lifting platform can be pressed on the outermost ring-shaped sealing ring.

[0014] Further, the upper circumferential wall of the lifting platform is detachably sleeved with a widened plate.

[0015] Further, the abutting column is vertically arranged on the circumferential outer side of the pressing seat.

[0016] Further, the abutting column is vertically arranged on the circumferential outer side of the pressing seat.

[0017] Further, the abutting column is vertically arranged on the circumferential outer side of the pressing seat.

[0018] Compared with the prior art, the cover body air tightness detection mechanism can abut against the circumferential edge of the end cover end and the stepped surface inside the end cover through the positioning platform and the lifting platform, form two-section air tightness detection of the end cover, and increase the universality through the replacement of the widened plate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A cover body air tightness detection mechanism provided by the utility model is shown in the schematic diagram.

[0020] Figure 2 The positioning seat of the cover body air tightness detection mechanism is shown in the schematic diagram. Figure 1 The positioning seat of the cover body air tightness detection mechanism is shown in the schematic diagram.

[0021] Figure 3 The pressing device of the cover body air tightness detection mechanism is shown in the schematic diagram. Figure 1 The pressing device of the cover body air tightness detection mechanism is shown in the schematic diagram.

[0022] Figure 4 The bottom surface of the positioning seat of the cover body air tightness detection mechanism is shown in the schematic diagram. Figure 1 The bottom surface of the positioning seat of the cover body air tightness detection mechanism is shown in the schematic diagram.

[0023] In the drawing, 10, positioning seat; 11, mounting hole; 12, positioning platform; 13, outer ring-shaped sealing ring; 20, lifting platform; 21, lifting driver; 22, air inlet; 23, inner ring-shaped sealing ring; 24, widened plate; 30, air tightness detector; 40, pressing device; 41, pressing seat; 42, positioning plug; 43, pressing driver; 44, abutting column; 45, soft pad; 46, annular flexible film. DETAILED DESCRIPTION

[0024] Embodiment one

[0025] Please refer to Figures 1 to 4It is a kind of cover body airtightness detection mechanism schematic diagram provided by the utility model, the cover body airtightness detection mechanism includes: positioning seat 10, positioning platform 12, lifting platform 20 and lower pressure device 40 are set on positioning seat 10, it is conceived that, the cover body airtightness detection mechanism mainly for the multilevel airtightness detection of end cover with inner step surface still includes other functional components and specific structure, for example electrical connection component, control component, mounting structure etc., it is the technology that the person skilled in the art is familiar with, therefore here will not be detailed one by one.

[0026] In the embodiment, positioning seat 10 is as main installation carrier, can be independently arranged or installed on equipment platform, positioning platform 12 is arranged on the upper end of positioning seat 10, and positioning platform 12 is flat, and the outer ring sealing ring 13 that is located at the circumferential outer side of mounting hole 11 and protrudes from positioning platform 12 is arranged on positioning platform 12 in interval, the circumferential edge of end cover is pressed on outer ring sealing ring 13, and the ring seal of the bottom of end cover is formed. The outer ring sealing ring 13 of different diameter positions corresponds to different end cover outer diameter size.

[0027] In the embodiment, mounting hole 11 is arranged in the middle of positioning seat 10, and lifting platform 20 is vertically arranged in the middle of positioning platform 12, specifically, lifting driver 21 connected with lifting platform 20 is arranged in positioning seat 10, lifting driver 21 is air cylinder or motor, the output end of lifting driver 21 can pass through mounting hole 11, and the main body of lifting platform 20 is arranged above positioning seat 10, and the lifting height is adjusted by lifting driver 21. The outer diameter of lifting platform 20 is greater than the inner diameter of mounting hole 11, that is, when lifting platform 20 is lowered to the appropriate height, mounting hole 11 is closed. Optimally, lifting platform 20 protrudes from positioning platform 12, and the circumferential edge of lifting platform 20 can be pressed on the outer ring sealing ring 13 located at the innermost side to ensure the sealing of lifting platform 20 closing mounting hole 11.

[0028] Air inlet 22 is arranged in the middle of lifting platform 20, air inlet 22 is provided with air channel and is connected with air tightness detector 30, air tightness detector 30 is prior art, gas is filled into end cover through air inlet 22, and the airtightness of end cover is identified by stable pressure maintaining state, and specific action will be described in detail below.

[0029] The pressing device 40 comprises a pressing seat 41 located above the positioning platform 12, the bottom of the pressing seat 41 is provided with a positioning plug 42, and a pressing driver 43 for driving the pressing seat 41 vertically lifting is arranged, the pressing driver 43 is a pneumatic cylinder, the pressing driver 43 drives the pressing seat 41 to vertically descend until the positioning plug 42 is embedded in the upper end opening of the end cover, and the upper end opening of the end cover is closed. A vertical abutting column 44 is arranged on the circumferential outer side of the positioning plug 42 of the pressing seat 41, the abutting column 44 is synchronously abutted on the upper end of the circumferential edge of the end cover with the pressing seat 41, so that the end cover is circumferentially limited on the positioning platform 12, and the positioning stability of the end cover is improved. Optimally, the end of the abutting column 44 away from the pressing seat 41 is provided with a soft pad 45, and the soft pad 45 reduces the contact abrasion with the end cover.

[0030] The inner ring sealing ring 23 is arranged on the lifting platform 20 and protrudes from the inner ring sealing ring 23 of the lifting platform 20, and the inner ring sealing ring 23 is arranged on the circumferential outer side of the air inlet 22 and protrudes from the lifting platform 20. By ascending to the inside of the end cover on the lifting platform 20, the inner ring sealing ring 23 is in close contact with the stepped surface of the end cover to form an inner side seal, so that the air tightness of the inside of the end cover can be tested.

[0031] The end of the lifting platform 20 is detachably sleeved with a widening plate 24, and the widening plate 24 can be suitable for end covers with different inner diameters.

[0032] The bottom of the lifting platform 20 and the mounting hole 11 are provided with an annular flexible film 46, and the annular flexible film 46 can avoid foreign matters from entering into the positioning seat 10.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A cap airtightness detection mechanism characterized by comprising: The utility model relates to a positioning seat (10) is provided with the installation hole (11) in the middle part, and the positioning platform (12) is arranged on the upper end of the positioning seat (10), and the lifting platform (20) is vertically arranged in the middle part of the positioning platform (12), and the lifting drive (21) is arranged on the positioning seat (10) and connected with the lifting platform (20), the outer diameter of the lifting platform (20) is greater than the inner diameter of the installation hole (11), and the lifting platform (20) can seal the installation hole (11), the middle part of the lifting platform (20) is provided with the air inlet (22), and the air-tightness detector (30) is connected with the air inlet (22). The lower pressing device (40) comprises the lower pressing seat (41) above the positioning platform (12), the bottom of the lower pressing seat (41) is provided with the positioning plug (42), and the lower pressing drive (43) drives the vertical lifting of the lower pressing seat (41). The positioning platform (12) is provided with the outer ring sealing ring (13) on the circumferential outer side of the installation hole (11) and protruding from the positioning platform (12). The lifting platform (20) is provided with the inner ring sealing ring (23) on the circumferential outer side of the air inlet (22) and protruding from the lifting platform (20). The lifting platform (20) protrudes from the positioning platform (12), and the circumferential edge of the lifting platform (20) can be pressed on the innermost outer ring sealing ring (13).

2. The cap airtightness detection mechanism according to claim 1, characterized by, The outer wall of the upper end of the lifting platform (20) is detachably sleeved with the widened plate (24).

3. The cap airtightness detection mechanism according to claim 2, characterized by The lower pressing seat (41) is provided with the abutting column (44) arranged vertically on the circumferential outer side of the positioning plug (42).

4. The cap airtightness detection mechanism according to claim 3, characterized by The abutting column (44) is provided with the soft pad (45) away from the lower pressing seat (41).

5. The cap airtightness detection mechanism according to claim 4, characterized by The bottom of the lifting platform (20) and the installation hole (11) are provided with the annular flexible film (46).

6. The cap airtightness detection mechanism according to claim 1, characterized by ​ 7. The cap airtightness detection mechanism according to claim 6, characterized by ​ 8. The cap airtightness detection mechanism according to claim 1, characterized by, ​

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